Louis Lenders : gdi32: Add check for null pointer in SetDIBitsToDevice.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d711728a7e55daacbaabdebec60bbb88c8d4e580
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=d711728a7e55daacbaabdebec60bbb88c8d4e580

Author: Louis Lenders <xerox_xerox2000 at yahoo.co.uk>
Date:   Mon May  7 21:03:16 2007 +0100

gdi32: Add check for null pointer in SetDIBitsToDevice.

---

 dlls/gdi32/dib.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/dlls/gdi32/dib.c b/dlls/gdi32/dib.c
index 7b9ef6d..86e1308 100644
--- a/dlls/gdi32/dib.c
+++ b/dlls/gdi32/dib.c
@@ -364,6 +364,8 @@ INT WINAPI SetDIBitsToDevice(HDC hdc, INT xDest, INT yDest, DWORD cx,
     INT ret;
     DC *dc;
 
+    if (!bits) return 0;
+
     if (!(dc = DC_GetDCUpdate( hdc ))) return 0;
 
     if(dc->funcs->pSetDIBitsToDevice)